... angle iron 1sell based on theoretical/actual weight 2material:Q235B,Q345B,SS400,S275JR.. 3origin:tangshan, hebei steel angle1.equal angle, ... unequal angle2.Stabdard: GB/T 9787, GB/T9788, JIS, ASTM, EN3 ... structures, such as beams, bridges, transmisson towers, lifting or transporting machines, shipping, industrial boilers- Framework of all kinds ...